There are total 5 hours or 300 minutes from 4pm to 9pm. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 1AM to 4PM | 11AM to 10PM | 12PM to 12AM |
| 4PM to 7AM | 3PM to 12PM | 8AM to 11PM |
| 2PM to 4AM | 1AM to 7AM | 1PM to 9PM |
| 2AM to 4AM | 11PM to 4PM | 10PM to 8PM |
| 6AM to 10PM | 7AM to 12PM | 7AM to 12AM |
| 9PM to 2AM | 6AM to 12PM | 5AM to 10PM |
